* SIDs together and detect network failures.
 */
    public ACE[] getSecurity() throws IOException {
        return getSecurity(false);
    }

    public SID getOwnerUser() throws IOException {

        int f = open0(O_RDONLY, READ_CONTROL, 0, isDirectory() ? 1 : 0);

        /*
         * NtTrans Query Security Desc Request / Response
         */